using SerialPortUtility;
using System.Collections.Generic;
using UnityEngine;

public class ArrowSerialPort : MonoBehaviour
{
    private SerialPortUtilityPro serialPortUtility;
    private SerialPortUtilityPro.OpenSystem openMode = SerialPortUtilityPro.OpenSystem.PCI;
    private int baudrate = 115200;
    private string PortName = "/dev/ttyS1";
    private static bool _isInit = false;
    public bool testMode = false;
    private void Awake()
    {
        if (!_isInit)
        {
            DontDestroyOnLoad(gameObject);
            Init();
        }
    }

    private void LOG(string msg)
    {
        Debug.Log($"<color=#00FF00>{msg}</color>");
    }
    
    private void Init()
    {
        _isInit = true;
        serialPortUtility = gameObject.GetComponent<SerialPortUtilityPro>();
        serialPortUtility.OpenMethod = openMode;
        serialPortUtility.DeviceName = PortName;
        serialPortUtility.BaudRate = baudrate;
        serialPortUtility.StopBit = SerialPortUtilityPro.StopBitEnum.OneBit;
        serialPortUtility.DataBit = SerialPortUtilityPro.DataBitEnum.EightBit;
        serialPortUtility.Open();
        LOG($"{PortName} 串口打开");
#if UNITY_EDITOR
        if (testMode)
        {
            var testBoard = Resources.Load<GameObject>("SerialPortTest");
            GameObject.Instantiate(testBoard);
        }
#endif
    }
    
    private void OnDestroy()
    {
        LOG($"{PortName} 串口关闭");
        serialPortUtility.Close();
    }
    
    /// <summary>
    /// 串口读取二进制流数据（界面挂载调用）
    /// </summary>
    /// <param name="data"></param>
    public void ReadStreamingBinary(object data)
    {
        PhraseData(data as byte[]);   
    }

    public void TestRead(byte[] bytes)
    {
        PhraseData(bytes);
    }

    /// <summary>
    /// 解析串口数据
    /// </summary>
    /// <param name="bytes"></param>
    private void PhraseData(byte[] bytes)
    {
        Debug.Log($"{PortName} 收到串口信息！");
        if (bytes[0] == 0xAA)
        {
            var cmdID = bytes[1];
            switch (cmdID)
            {
                case 0x80://设备信息响应
                    OnDeviceInfoBack(bytes);
                    break;
                case 0x81://射击消息
                    OnDeviceShoot(bytes);
                    break;
                case 0x82://按键消息
                    OnDeviceButton(bytes);
                    break;
            }
        }
    }
    
    #region APP请求
    // 异或校验内容：命令+长度+数据内容
    
    /// <summary>
    /// app请求设备信息
    /// </summary>
    public void RequestDeviceIno()
    {
        List<byte> data = new List<byte>();
        data[0] = 0xAA;//起始码
        data[1] = 0x80;//命令号
        data[2] = 0x05;//长度
        data[3] = 0x85;//异或校验
        data[4] = 0x55;//结束码
        serialPortUtility.Write(data.ToArray());
    }
    #endregion
    
    #region 返回消息处理

    /// <summary>
    /// 设备信息响应
    /// </summary>
    private void OnDeviceInfoBack(byte[] bytes)
    {
        Debug.Log($"{PortName} 收到设备信息响应！");
    }
    
    /// <summary>
    /// 射击消息
    /// </summary>
    private void OnDeviceShoot(byte[] bytes)
    {
        Debug.Log($"{PortName} 收到设备射击消息！");
    }

    /// <summary>
    /// 按键消息
    /// </summary>
    /// <param name="bytes"></param>
    private void OnDeviceButton(byte[] bytes)
    {
        Debug.Log($"{PortName} 收到设备按键消息！");
        var buttonType = bytes[3];//按键类型
        // 0x01 开机键 - 短按
        // 0x02 开机键 - 长按（1.5 秒）
        // 0x03 开机键 - 双击
        // 0x04 标定键 - 短按
        // 0x05 标定键 - 长按（1.5 秒）
        // 0x06 标定键 - 双击
    }
    
    #endregion
}